Did you use TBR for all subjects? I'm looking into using the old TBR for C/P content and using only the passages for B/B
I'll throw in my advice for MCAT. Sorry for the upcoming long paragraphs, but I'm all about giving people the best advice I can give.
I used Examkrackers and I swear by it. I bought both EK and TBR (spent way too much money too lol), but I found TBR very dense and not enjoyable to do (as much as studying can be enjoyable). I think that EK covers everything (except psych and soc) very well and isn't boring to read. It is also significantly cheaper than TBR - however TBR does have a lot more passages, so that would be something to consider.
As far as psych and soc, I would definitely recommend just using the Princeton review psych and soc book (it's the only good thing from PR imo) and the Khan Academy notes. If you google khan academy notes for mcat then click the first result and use the Lazy OCD version. Basically someone took 300 pages of notes from every single KA video on psych and soc and then someone condensed everything down to less than 100 pages by taking out stuff that isn't tested and taking out unnecessary details. I first went through the entire PR book to familiarize myself with P/S which took a few days and it was relatively fast and a nice break from hard sciences lol and then I went through every page of the 100 page guide and wrote it all down and highlighted and annotated as I needed and this took me about 5 or 6 hours for 4 or 5 days and I finished the whole guide. Anything that can be on the MCAT for P/S is covered by this guide - it's just a matter of you memorizing the names of scientists, theories, and experiments for some questions about applying certain theories and concepts to passages.I then just used AAMC materials for review and ended up with a 130 on P/S. I only took Soc 100 freshman year in college and tested out of psych with a 4 on the AP test.
For CARS, I liked the EK book because it gave some great advice and tactics which made cars not seem as bad from the very beginning. I ended up with a 128 on cars. I wish I had done more practice passages from AAMC, I just ran out of time and motivation and probably didn't do 150+ which might've made my score increase. The bottom line is CARS is something you have to work on from the very beginning and your score slowly slowly increases - mine started at a 123 on my first AAMC practice test. Don't read random stuff like papers and articles in hope of increasing your score because as much as cars is about increasing your comprehension, its also about answering the questions and you can only get legit questions from AAMC, so spend your time on AAMC passages and questions after you finish the EK CARS book, it's pretty short overall and only takes about a week in total to get through (I did a chapter every 2 or 3 days).
Finally, the most important thing not matter what books you use to study is AAMC material. About a month out from your exam you should ONLY being using AAMC material. They full lengths and a half length and ton and tons of practice questions - I would recommend just buying the complete set and also the flash cards. These are questions written by the people who make the MCAT and are the absolute best material to study from and test yourself on. Take a FL and then review every single question and understand why you got things wrong and work through them again.
My last word of advice is spend MORE time on the stuff you hate and don't understand. I had a horrible experience with physics in school (I got an A both semesters, but seriously didn't understand anything) and I was never amazing with gen chem (got B's both semesters). So I didn't put full effort into to those subjects when studying and ended up with a 125 on the exam. While this wasn't horrible a 5 point gap in between my highest and lowest score probably raised some eyebrows and maybe even kept me from some reaches on my application. If I had spent just a little more time going over the physics and chemistry stuff I didn't understand I probably could've added 2 or 3 points to both C/P and B/B.
Good luck on your retake!